/Engine/Source/Runtime/GeometryCore/Public/Spatial/MeshAABBTree3.h
typedef [TUniqueFunction](API\Runtime\Core\Templates\TUniqueFunction)< int(int Depth, const [FAxisAlignedBox3d](API\Runtime\GeometryCore\FAxisAlignedBox3d) &[Box](API\Plugins\DynamicMesh\ShapeApproximation\UE__Geometry__EDetectedSimpleSha-))> GetSplitAxisFunc